Features: USE Battery or Micro USB (Android cable with power bank will do) 1.Systolic, diastolic , pulse rate displayed simultaneously 2.Intelligent automatic pressurization and decompression 3.Incorrect prompting function 4.Automatic shutdown function:1 min after last operation 5.Fashionable outward, Light and compact, Easy to carry, suitable for health care(medical field, familes and adult) Specifications: Product Name: electronic blood pressure monitor sphygmomanometer Dimensions: 98mm*126mm*60mm Display: digital liquid crystal display Measurement range: Pressure:20~280mmHg(0.4kPa-37.3kPa;pulse:40 ~199 beats /min Accuracy: Pressure:±3mmHg(±0.4kPa);pulse : Within±5% Voltage : 6 V(4 * No. 5(AAA) alkaline batteries) Color Box Dimension: 11cmx10cmx16cm Outer Box Dimension: 52cmx35cmx34.5cm Certificates: CE ROHS Take note: -Warranty covers defects only in workmanship/ Manufacturing Defects for a period of 1 Year from the date of retail purchase.